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BAR SUPPORT Filed Feb. 2, 1927 lll!! Patented Nov. 15, 1927.`

UNITED STATES PATENT OFFICE.

BAB SUPPORT.

Application filed February 2, 1927'.

The main objects of this invention are to provide improved means for supporting reinforcing bars used in concrete construction work; to provide a bar support and spacer particularly adapted for use in road construction tor supporting the bar above the ground and for spacing it from the side molds; to provide improved means tor locking the bar to the support; and to provide a bar support et this kind having improved means for retaining it in an upright position on the ground and for insuring the proper level for the bar by securing the support against being driven into the ground beyond a certain depth.

Illustrative embodiments of this invention are shown in the accompanying drawings, wherein:

Fig. 1 is a perspective, showing one form ot bar support and spacer in its elevated position prior to driving the pin into the ground, a reinforcing bar being shown in dotted outline, and part of a side mold bein@V also`shown.

ig. 2 is a similar view, but showing the pin embedded in the ground.

Fig. 3 is an enlarged Jfragmentary top plan ot the device shown in Figs. 1 and 2.

Fig. 4 is an enlarged fragmentary elevation of the same, the bar being shown in section.

Fig. 5 is al transverse section taken on the line 5-5 of Fig. 2.

Fig. 6 is a detail in elevation, showing the bearing plate.

Figs. T and S are perspectives showing other forms ot bar supports and spacers.

Figs. 9 and 10 are sections taken on the lines 9-9 and 10-10 ot Figs. 7 and 8 respectively.

In the form shown, the improved bar supports are used for supporting reinforcing bars 1 disposed horizontally and embedded in the concrete a uniform distance above the ground 2. Certain of the bar supports, which support the outer rows of bars, are provided also with means for spacing the outer rows a uniform distance trom the vertical side walls E5 which form the molds for the sides of the road.

In the constructions shown, the improved Serial No. 165,371.

support comprises a rod or pin having a pointed portion adapted to be driven into the ground or other supporting surface and another portion have a crook forming a seat -for supporting the reinforcing bar. A latch is provided 'for securing the bar to the seat. To insure accuracy in the placing ot the reinforcing bars, means is provided also for retaining the support in an upright position on the `ground and for securing it against being driven beyond a certain depth. rthe supporting pins are preferably made of wire which possesses the essential rigidity and which may be bentreadily to the desired form.

In the construction shown in Figs. 1 to G inclusive the support comprises a rod 4 having a pin portion 5 at one end thereof. The medial portion of the rod is bent at substantially right angles to the pin 5 to provide a head G adapted to receive the blows of a tool used vtor driving the pin in the event that the ground is not sutiiciently soft to permit the pin to be driven without a tool.

Adjacent the head 6, the upper portion of the rod 5 has a crook forming a substantially U-shaped seat 7 which is slightly greater in depth than the reinforcing bar which it is adapted to support. The upper portion of the rod projects laterally beyond the crook 7 to form an arm 8 adapted to space the rcinforcing bar from the mold. The reinforcinf;r bar is secured to the seat 7 by a movable latch 9, which is adapted to span the upper part of the crook.

In the form shown. the latch 9 comprises a flat piece ot metal having an aperture 10. through which one leg ot the seat 7 extends to provide the` hinge. Formed on the other end of the latch 9, is a catch 11 adapted for interlocking engagement with the other leg of the seat. The distance between the catch 11 and the hinge ot the latch is preferably slightly less than the width of the seat 7 sp as to necessitate springing the leg portions of the seat. in opening and closing the latch. The latch is thereby held in its closed posi- 'tion by the resilience of the seat portion. Axial shitting of the latch relative to the Upper portion of the, rody is limited. by' shonl@ ders 12 struck out from the arrn S and the adjacent', leg ot the seat 7.

Embracing` the pin portion 5 ot the rod, is a flat bearing plate 13 hfwing` an aperture 14 through which the rod e'tcnds. Struck out -from the pin 5 on oppor, e sides ot the plate 13. are shoulders 1 5 tor securing the plate against axial shitting. The bearing plate 13 is spaced from the seat the distance Which it is desired to space the reinforcing bars above the ground or other supporting surface.

ln the form shown in Figs. 7 to 9 inclusive the barfsupport comprise.. rod 1.1 bent at its medial part to torni a crook .7 .1 which separates a pin portion 5.1 :trom a spacing arm 8.1. ln this torniy the arm 8.1 crook 7.1 and pin 5.1 are located in the same plane,

and in the forms shoivn in 1 to 5 inelusive, the pin 5 is offset trom the plane ot the crook Y and arm 8. The throat oit the crook 7.1 is restricted so to provide a shoulder 16 which secures the reintorcing` bar against accidental displacement.

Mounted on the crook 7.1., a latch 9.1 which is similar to construction and opera.- tion to the latch 9 shoivn in Figs. 1 to linclusive. ln the form shoivn in Figs. 8 and 10, the latch is hinged to the top leg; portion ot the crook 7 .1 and in the device shown in Figs. 7 and 9, it is reversed. Atrial movement ot the latch 9.1 is limited by shoulders 12.1 struck out from the rod.

i bearing plate 8.1 having an aperture lil-.1 embraces the pin 5.1 and is secured against axial shitting by shoulders 15.1 struck out Jfrom the pin.

ln operation, before the supports are driven into the ground, one ot the supports may be used as a marker or gage tor marking a line in substantially parallel spaced relation to each ot the side molds 3, along which the outer rows ot supports are to be driven. .ln using a support as a gage, it is held in one hand in a plane substantially perpendicular to the mold, with the arm 8 disposed horiaontallv1 in sliding engagement with the mold and. the pin 5 .in enga-gement with the surface which it is desired to mark. rlhe device is then moved along the mold to mark the line.

The supports are then set up in spaced. relation along the line. With the arms 8 engaging the mold. After the reintorcingr bars 1 have been layed on the seats 7. the latches 9 are swung to their closed positions.

Although but certain specic embodiments of this invention have been herein shown and described, it will be understood that numerous details ot the constructions shown may be altered or omitted Without departing;r from the spirit of this invention as defined by the following; claims:

lt claim:

1. il. device ot the class described compris-- mounted on said rod and adapted to span it i'ox' .securing a bar thereto. 2. A. ldevice ot the class described coinprising a rod having a portion adapted to be driven into a supporting surface and another portion having; a crook forming a seat for supporting a bar. and a latch hinged to said rod and adapted to span said seat tor securinga bar thereto.

i deviceo't the class described cornprising` a rod having a portion adapted to be driven into a support-ing sui-tace and another portion having a crook 'forming a seat for support-inga a har, and a latch hinged to one side ott said seat. and adapted for interlocking` engagement with the other side thereof for securing a bar thereto.

l1. A device ot the class described comprising a. rod having a portion adapted to be driven into a supporting surface and another portion having a crook forming a. seat tor supporting; a` bar, and ay latch hinged to .said rod and adapted to span said seat tor securing a bar thereto. the sides' oit said seat beingy resilient and adapted to be sprungr to permit the opening and closing et said latch.

5. A. device ot' the class described comprising a rod having a portion adapted to be driven into a supporting surt'ace and another portion having` a crook forming a seat tor supporting; a barD a hinged latch adapted to span said seat torsecuring a bar thereto, said latchhaving an opening at one end thereof through which said rod extends to torni a. hinge at one side ot said seat, and catch :Formed on the other end ot said latch for interlockingn engagement with the other side ot saidv seat- Elfi 6. Il. device ot the class described comprisinn' a rod having a portion adapted to be driven into a supportin surtacc and another portion having` a crook forming a seat tor supporting: a bar, and a latch hinged to said rod and adapted to span said seat tor sec-uring a bar thereto9 said rod projecting laterallyv beyond. said. seat to provide a spacer adapted to space the bar 'from a mold.

i. A device ot the class described comprisingr a rod having a portion adapted to be driven into a supportingy sur-tace and another portion having; a crook forming a seat tor supporting a. bar, means tor .securingthe har to said seat. a bearing plate having an opening through which said first mentioned portion projects, and shoulders on said rod arranged to secure said bearing plate against arial shitting); relative to said rod. saidplatc beinga adapted to engage y.l top ot a supporting surface.

8. A. device ot the class described comprising a rod adapted to be placed upright on a supporting member, said rod having a crook forming a seat for supporting a bar, and a forming a seat for supporting a bar, and a. latch movably mounted on said rod and latch hinged on said rod and adapted to span adapted to span said seat for securing a. bar 10 said seat for securing a bar thereto. thereto.

9. A device of the class described compris- Signed at Chicago this 31st day of J anuing a rod adapted to be placed upright on a ary, 1927. supporting member, said rod having a crook HENRY H. LAMPERT. 

